Waterproof gum



UNITED STATES PATENT omen.

SAMUEL E. BRICK, OF SALINA, KANSAS; LILLIAN B. BRICK EXECUTRIX 0F S SAMUEL E. BRICK, DECEASED.

WATERPROOF GUM.

To all whom it may concern:

Be it knownthat I, SAMUEL E. BRICK, a citizen of the United States, residing at Salina, in the county of Salina and State of ansas, have invented certain new and useful Improvements in a Waterproof Gum, of which the following is a specification.

This invention relates to adhesives and more particularly to a waterproof gum especially adapted for general use such as gumming leather, Wood, fiber compositions, cloth and also for setting bristles in brushes.

Another object of the invention is to provide an adhesive gum which will be waterproof and which cannot be loosened or moistened by benzin, benzol, alcohol, gasolene or other hydrocarbons.

The ingredients are:

1 pound of celluloid.

1 gallon of acetone.

The proportions indicated are best adapted for securing the desired results and the proportion of one pound of celluloid to one gallon of acetone may be varied as desired according to the quantities required.

The celluloid and acetone are placed in a mixing machine or agitator provided with suitable revolving paddles and stirred or agitated constantly for about six hours. e gum is then ready for use. It should be pointed out, however, that the proportions of the celluloid can be increased or decreased to as small amount as one-half a pound of celluloid to as great an amount as one and one-half pounds of celluloid. The

smaller quantity will provide a mixture Specification of Letters Patent. Application filed February 1, 1919. Serial No.

- It will b Patented Sept. 6, 1921. 274,555.

adapted for lighter work such as fixing cloth samples to cardboard, pasting light grades of leather, or fixing cloth to wood. The heavier grade, that is the largerquantity of celluloid, will adapt the gum for better work such as setting bristles in brushes, wood veneer work, and similar uses as the greater quantity of celluloid makes a heavier which has greater sticking qualities and will not shrink when applied.

It has been found that the best celluloid is the kind commonly known as sheet celluloid.

e understood, however, that any celluloid which will cut in acetone will produce the desired results.

Where it is desired that the mixture dry quickly, half the quantity of celluloid may be cut in acetone and the remaining half thinned with tetrachlorid of carbon. The latter ingredient will assist the mixture in drying after being applied. Either of the cutting ingredients will have no efl'ect on the waterproof qualities of the adhesive.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent, is

water-proof adhesive composition consisting of a solution of celluloid, acetone and tetrachlorid of carbon.

In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL E. BRICK.

Witnesses:

O. H. Fonnns'r, W. B. Surrn. 

